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Vaccine ; 16(7): 727-31, 1998 Apr.
Article in English | MEDLINE | ID: mdl-9562693

ABSTRACT

In this study, the effects were examined of dose and adjuvant of whole-killed gp120-depleted HIV-1 antigen on antibody and cytokine responses in a murine model. Immunization with increasing doses of inactivated HIV-1 antigen in Incomplete Freund's Adjuvant (IFA) resulted in increased production of IL-4 and IgG1 antibody with decreased production of interferon gamma. Immunization with inactivated HIV-1 antigen in Detox PC adjuvant produced TH1 type predominant cytokine patterns along with IgG2a subclass antibody. Higher levels of interferon gamma were associated with immunization with inactivated HIV-1 antigen in Detox PC compared with inactivated HIV-1 in IFA or inactivated HIV-1 in saline. Inactivated HIV-1 antigen in Detox PC adjuvant produced a trend of lower levels of the beta-chemokine MIP-1 alpha compared with inactivated HIV-1 in IFA or saline. Dose and adjuvant play an important role in the type of immune response elicited to a whole-killed HIV vaccine. Low doses of inactivated HIV-1 antigen in Detox PC adjuvant are currently being studied in animal models in order to optimize cell-mediated immunity against HIV infection.


Subject(s)
AIDS Vaccines/immunology , AIDS Vaccines/pharmacology , Freund's Adjuvant/pharmacology , HIV Antigens/immunology , HIV Antigens/pharmacology , HIV Envelope Protein gp120/immunology , HIV Infections/prevention & control , Animals , Chemokine CCL4 , Dose-Response Relationship, Drug , Freund's Adjuvant/immunology , HIV Antibodies/biosynthesis , Immunoglobulin G/biosynthesis , Interferon-gamma/biosynthesis , Interferon-gamma/immunology , Interleukin-4/biosynthesis , Interleukin-4/immunology , Macrophage Inflammatory Proteins/biosynthesis , Macrophage Inflammatory Proteins/immunology , Mice , Mice, Inbred C57BL , Vaccines, Inactivated/immunology , Vaccines, Inactivated/pharmacology
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